PHP compiling fails, strange ld / ldconfig behaviour?

Hello,
since i am trying to fix my troubles with recompiling different php versions in CWPpro, i maybe found some strange things.

I always get error-messages in the php build logs like "bz2" not found.

So i tried to "ld -libbz2 --verbose" and see

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attempt to open //usr/lib64/libibbz2.so
So libibbz2.so is definiteley not installed, because there is no libibbz2 lib, right?

I tested with other libs like librt, and found out, that ld is also searching for the libIBrt.so file? Where is this coming from and
how to fix that?

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attempt to open //usr/lib64/libibrt.so failed
OS: AlmaLinux 8


Update:
The output of ldconfig is correct...

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[root@s1 ~]# ldconfig -p | grep bz2
        libbz2.so.1 (libc6,x86-64) => /usr/lib64/libbz2.so.1
        libbz2.so (libc6,x86-64) => /usr/lib64/libbz2.so

Thank you very much,
regards

What is your end goal? Which mode are you going to use -- PHP switcher, suPHP, or php-fpm? Which versions of PHP would you like to have? Each case is a bit different.

Thank you for your reply.

What is your end goal? Which mode are you going to use -- PHP switcher, suPHP, or php-fpm? Which versions of PHP would you like to have? Each case is a bit different.

PHP switcher also did not work correctly, i tried it, same error messages in logfile regarding bz2... seems i am stuck at 7.4.33?

My end goal/s would be to (depends on solution/s)
- keep PHP 7.4.33 for compatibility issues as "base version"
- be able to compile (php >8.2 needed) other versions with php selector
- and maybe php-fpm selector too

Or a way how i can add alternate php versions manually?

If you want to PM me login details, I could take a look for you. I recommend PHP-FPM for performance reasons, plus the versatility of running php versions on a site-by-site basis with separate configs is a good thing. I have 4 versions running on one server -- legacy 5.6 for one site, 7.4 for a WordPress site that needs full compatibility, 8.1 for other WP sites, and 8.2 for a Drupal site.

I was having the same problem and I have used and follow this Guide https://holhol24.com/2025/07/25/fixing-php-compilation-failures-and-ld-ldconfig-issues-on-cwp-with-centos-8-almalinux-8/

I also tried a lot of things, read smth there and so on - nothing changed anything.
Then i had the idea to watch the happenings directly in a clen /src directory. Clicking on build on the CWP panel will create/download 3 bash scripts to it (and auto-remove them when finished).

So i quickly copied the files on a safe place and investigated them a little bit and just removed the auto-self-deletion parts.
I ran them - and surprisingly - the build process ran through and i have php 8.2 now. (Also in the php selector available).

I then tried to compile another version from GUI - which unsurprisingly failed again. So its not a "problem" caused by a "shooten" system - its a(nother) problem/side effect of CWP. Something is "uncommon" on my system and CWP does not like it - thats no reason why i should (like the CWP support said) setup a fresh server and install CWP again. I told them if i have to start from a scratch server i wont install CWP augain. Maybe they are calling the scripts from the GUI with wrong parameters/user or permissions?